Super Mario Brothers One Up - Super Mario Bros. (Supa Mario Burazazu?, sometimes referred to as Mario, Super Mario or SMB) is a platform game developed and published by Nintendo in late 1985 for the Nintendo Entertainment System. It made a huge impact on home entertainment when it was released, and is now considered the classic of the medium. Super Mario Bros. featured bright, expansive worlds that changed the way video games were created. Although often wrongly credited as the first scrolling platform game (there are at least a half dozen earlier), it is the first console original in this genre to feature smooth-scrolling levels, which made it a landmark in home video-gaming. - answers.com